My parents cannot decide what they want to be called when LO is old enough to call them something. Mallory is their first grandchild. My dad is of the opinion that she'll come up with something on her own to call him which is true I'm sure. My mom thinks she wants to be called Nanny or Nana but that seems sort of old for her...she's a pretty hip lady! What will/does your LO call Grandparents?
DD is on her way to 2!

Re: What will/does LO call Grandparents?
My parents are Nana and Bumpa (a name created by my cousin)
DH's parents will be grandma and grandpa
But things get tricky with DH's birth Mom. I am thinking that she will be Grandma Kathy but I am not sure since we have a niece that will be about 8 months older than our LO.
DH's mom is Grandma , and his dad is Gramps
My mom is Grammy, and my Dad is Pop pop or grandpa
DH's mom will be Nene (pronounced like nuh-nuh) which is what she called her grandmother. Not sure about DH's dad. My SIL on DH's side is having a baby in January, and he will be their first granchild.
My mom is grandma, my stepmom is Eema (Hebrew for mother), and my dad is Pops.
My mom will be called Mimi (since Grandma and Nana sound too old for her). My dad will be called Papa or Baba. And my MIL has not decided yet.
I just asked my mum this last night.. she is fine with whatever, so I think i'll call her Nana - like I did with grandparents. My dad passed away 5yrs ago, but I'm still SUPER close with his partner and LO will call him Pappie.. DH's parents will assume the names all the other kids on his side already call them; Granma and Grandpa
Grandmamacita and Gordo Papi : ))
For my IL?s probably just abuelita/o
DH's parents are gaga and papa--- the first grandchildren created those names. My dad, who is new at the grandparent thing has decided he is going to be GP, he says its much hipper and doesnt make him feel as old as grandpa...hes nuts!